TY  - BOOK
AU  - Subrahmanyam N.
AU  - N.Subrahmanyam
AU  - Brij Lal
TI  - A Textbook of sound
SN  - 8121926114
U1  - 534 22
PY  - 1966///
CY  - New Delhi
PB  - S. Chand
KW  - Sound
N1  - Includes bibliographies
ER  -